DE1919137A1 - Method and device for heating combustible foreign matter with carrying material and burning the foreign matter - Google Patents

Description

DR.ING.F.WUB8TIIOFF 8 MUNICH 00 DIPL. ING, G. PULS SCHWSIOERSTRASSE 3 I) It.EvPECU & tANN _TXI DR. ING. D. BBIIRBNS ",

• PATKNTANWll.TK photkotpat «kt uükosi»

1A-36 078

Description of the patent application

KOMAREK-GEEAVES AND COMPANY, a Division of, Berwind-Corporation ßosemont, Illinois, USA ₀

"concerning

Method and device for heating flammable foreign matter and burning the foreign matter.

Me check invention relates to a method and an apparatus for heating materials of combustible _t foreign., In particular oil, ride-good and v particular Heißsntb'lung with naohgeschalteter hot briquetting of good / ie broken or crushed turnings, chips of another kind, Drilling chips and other metal scraps that are to be remelted.

It has been shown that you can briquetting through briquetting such waste materials are particularly economical and expedient a * B * as an add-on in foundries and at Stahlerseugimg how to use it, because drilling and drilling chips

habswQ © iiiü for di® IFiederersohmelsimg in ilen Soliraelzöfen ύοά Öx0i3 © r © i © £ i cheap® 2usamiaeiiaetgung. The materials mentioned leave alafa easy with little loatem, especially in a workshop similar to a Sohmels plant. Efficiency - your * processing increases *

BATH ORIGINAL

1913137

However, the Dreil- and Bohrchips have the wake part, that they are very small in size and are usually wetted with oil and water. As a result, they are immediate pra.ktisoh not suitable in a cupola furnace or a Electric furnace to be used as aggregates.

With hot de-oiling and hot briquetting you can these residual parts are removed from turning and drilling chips » The briquettes or compacts produced in this way have sufficient dimensions and a sufficient diameter so that sioh the original bulky dimensions of the turning and drilling chips no longer have a disadvantageous effect. Bern acquaintances Briquetting is regularly carried out in its own work step to remove the oil and water adhering to the turning and drilling chips steamed and removed so that the briquetted product practically no longer contains any traces of oil and water.

The presence of oil on the turning and pipe chips can be used to advantage in hot briquetting * by using oil as fuel, which is burned when the oil is removed. This results in ideal possibilities of regulating the temperature and the other conditions prevailing in the combustion zone of a furnace which is used to remove the oil so that no oxidation of the melted material in the combustion zone occurs. fuel "ratio can he a nu £ a desired value are held ,, so that AIUs temperature desired height is achieved within of.

Furthermore, the hot oil removal enables unfavorable bedding to avoid that see as a result of the burning of the oil could result. Namely, it can be sent to siah. too large amounts at oil fumes and Eauoh arise, which au "" a very- "umer-. wünaciiteii pollute the air. would"

BAD ORlGfNAL 900843 / $ 131

The invention, which is yet to be explained, therefore envisages post-combustion the combustion gases, by means of which the excess amount of oil is burned, to these difficulties to please. In addition, those escaping from the system can be Gases are scrubbed using suitable devices to reduce the amount of pollutants released into the air further decrease.

According to the methods used up to now, the turning and drilling chips are placed in an oven to remove foreign matter e like oil from the surface of the turning and drilling chips Burn down to remove.

The hot material to be treated is then turned into a brickworking machine transported for the production of pellets or used for another purpose.

In the previously known devices for heating

of turning and drilling chips it was considered necessary

to use a furnace with different zones, in whose zones certain different processes took place. In one known furnace, a central zone was a primary one Vorbronnungszone in which the material to be briquetted was introduced. Devices were also provided by means of which the material was blown into the furnace in order to achieve the To disperse good particles, for it was believed to be this is necessary to achieve sufficient heat transfer.

the

Below / primary zone was one equipped with burners additional heating zone arranged. Furthermore, rakes were provided, by means of which the goods were gradually moved around to cause the good to finally pass through the two heating zones fell through.

Above the primary zone was an afterburning facility arranged. By introducing air into the post-combustion zone were not yet burned oil vapors in the post-BATH OBIGEM- 90904 3/1 3 1 p

burners burned to the pollution of the atmosphere to wrestlers "Iq to ₉ attributed this zone served rakes the settled dust chamber accumulated on the bottom of the m & ä ITachverbreanungs".

The object of the invention is generally ordered _0, the known method and the known device sur Heissentöluüg nor zn improve, in particular besüg improvements =

s lent OCE device (furnace), by means of the oil and water of Fremdstoffewie flor surface "of the material removed and dae Good equal · = *" mutually ZVM 2w © ck briquetting or below a anderon Zweok be preheated. The aim is to propose further vorgö- Ofenkoastruktionen ₉ waae can be produced with relatively low drew lots to one- very sweekmässlge ,, economical and reliable manner can be operated. " The ovens are also designed so that the gases escaping from the oven can be treated, with the excess oil vapor being burned. Ultimately, the entrainment of dust by the discharged oasis should be avoided as much as possible «, so that only a small amount of dust or no dust at all gets out of the furnace for afterburning, for gas scrubbing and / or into the atmosphere,

Dae the problem underlying the invention is a · = gangs mentioned process achieved for that ßut the furnace is fed directly to the VerbreEnungszone, and the Good entrained combustible Fremdstoffθ by previously in the Yerbrennungszone introduced, hot particles werö gesundet @ ti ₅ _ that the material is moved progressively in the direction of the material outlet of the furnace and that the combustion gases are brought into contact with the material on their way to the exhaust gas outlet of the furnace.

A door direction is suitable for carrying out this procedure with a combustion zone, a material inlet opening and one of these assigned goods feed device, a device for moving the feed material through the Varbrearningsgone,

BATH ORIGINAL

800843/1315

a material outlet and an outlet for the combustion gases, which is characterized according to the invention in that the material inlet is assigned to the combustion zone in such a way that the feed item directly to the item that is already in the The combustion zone is or was available for ignition and that the material can be moved with the device for moving the material towards the material outlet.

Advantageous refinements and developments of the method and the device for performing the method result from the subclaims and the further description, in which the invention is described in relation to the treatment of metals, it should be noted that it According to the invention it is also possible to use other substances advantageous Way to process. For example, Erae, to which a fuel is added when it is introduced into the furnace, are subjected to a treatment according to the invention.

- 6

^ 09843/13

1918137

The invention thus provides methods and devices for carrying out a heat treatment of pieces of metal, which have proven to be more economical and expedient in comparison to the methods and devices known up to now. It has been found that furnaces with only a single furnace are used can;? to heat turning and drilling chips to such an extent that these materials briquetted or for use as starting materials at melt Vorgangen can be treated in a different way according to the invention reduce the Yerarbei = "processing costs to a considerable extent by ₅ that on. to dispense the use of additional zones can _£ so that the dimensions of the furnace considerably reduce ^ addition to the up to now common fan and. the additional Hechen omitted werden®

The arrangement with only a single firebox proves; are particularly advantageous in systems in which the inlet and outlet openings for the materials to be treated are arranged in such a way that maximum throughput ratesa and minimum system and operating costs can be achieved. Additional improvements are possible where the flow of gases into a relationship to the loading direction and the working direction of the rake sfceht _s so that maximum efficiency is achieved * Finally, the invention enables operation at relatively low! Pollution of the exhaust gases by entrained dust »

BATH ORIGINAL

»09843/13 IS '

ι the TEr-

The invention and advantageous details are found in the following on the basis of schematic drawings lack of exemplary embodiments explained in more detail «.

o 1 is an illustration of a sehematische Heißbrikettierungsanlage according to the invention _o

3? Ig «2 is a vertical section through a furnace construction suitable _{for use in a briquetting system according to Mg 0 1}

3 is a horizontal section along line 3-3 in Mg ₃ 2 _O '

o 4 shows another in a vertical section Embodiment of a furnace construction o

₀ 5 is a horizontal section along line 5-5 in! Ige 4 _e

! ig »6 shows a vertical section of a further modified ■ Ausführungsforu the Srfindung _s

Mg ο 7 is a horizontal cut along the line 7-7 in Pig 6. ':

8 is a schematic representation of a further modified embodiment of a construction _{0 according to the invention}

9 to 11 each show in a vertical direction Section further modified embodiments of the invention "

The systems and devices according to the invention are specially designed for the processing of turning and drilling chips and similar materials *

I ¹ Igο 1 schematically shows a hot briquetting system according to the invention. In this system, cast iron drilling chips are fed to a classifying sieve 12 in the manner indicated at 10. The classifying screen retains excessively large particles of material, so that the particles of the material fed to the furnace 14 and of the product recovered in the furnace

_BA D OR ₁ G ^ «09843/131«

have relatively uniform dimensions

They are hot chips from the furnace via line pipeline 16 to a briquetting machine 18. With Using this machine produced briquettes or compacts are conveyed through a cooling device 20 and then fed to a sieve 22. That atgton from the compacts Fine material is returned to the furnace through a line 24 In the event that the material leaking from the furnace does not is to be briquetted, the pipe 16 has a · Abewe. ^ - line 25 on.

Furthermore, a gas scrubber 26 for cleaning from the Oven provided over an afterburner 28 escaping gases · A suction fan 30 sucks the gases out of the gas scrubber and promotes them into a chimney 32, through which they into the atmosphere escape.

Fig. 2 and 3 show an embodiment of a cure use in a system you described suitable Furnace construction according to the invention. The total does 34 The oven designated has 56 Eitilaaeüffttuagen in a side wall 42 on ι through which the good) z. B. ßrefr- and drilling chips euf

be able to ^^; Oven area 44 abandoned ^ In the oven ceiling 38 there is an opening for the gases. Furthermore, ReJfasiU -Ji [ envisaged, by means of which the material is moved over the oven surface in such a way that the oven is finally over vain AuelaJ3 46 in the oven floor.

When the good is put in the oven, it is given to him with · ** guided oil ge frets t, so that β β burns off. This broadening * The process serves to maintain the desired temperature in the oven, and therefore the furnace is essentially self-sufficient.

BAD ORiGfNAL

90984 3/1315

active in operation »Together with the © α <£ ut to be heated while the inlet ports 42 also keep air in the furnace. Further inlet openings can be seen in FIG. 3 at 48 shown. Provide type ^ so that the furnace continues to air quantities Euge £ ohrt w @ rd @ a can · Duroh sine regulation of the supplied to the furnace S »uftmeiig® iat ea possible to regulate the temperature that si® is kept within the desired Crr®nz®n.

Binlaß® d © r lsi ligo 3 at 48 species shown -can be further to the & w @ © k Torg @ a§h @ n _s di® 'supply ssusätaucher materialmeog © E m. Different places on the outer hand of the hearth . © rmßgliohen. Bi © V © rw®oduög- mtto © r @ r material giogationa opening can lead to an increase, the performance in the system ioteen »dean- the gugefütot © material tends to» over ä @ mj © üig8a S © il ösr Heräfläoä © su eatsäiödsh, the

is »¥ ®an man

aa verechieso that © is in ©.

lli® Q @ fe © ö © r ^ ähotj, karai man mtferar® Iiuf teialäss® vori, t'job ©! Q9 aiöfe, b @ i this one

te®, m. $ about Si® the gw

old i nan palt wfg ^ SiiSsß köaatajj dsr see, about äea gaasaa Uafang

@ iß konstaafcsr Ijtif tstroii "zur Ung g ka.nn _a tu äieaem

§ © i |} © m © rkt ₈ öaS di © KoasteutetAaa aasfe fIg * 2 "and 5 €) b © aa © wi © di® Somrbruktionsa aaoh f Ig» 4 "to? urid naoh Pig β 9 to II formed SAaO ₈ üaß ils Saft-duroh. de »Of ®n sfci? ümfe, j that the Mafce ^ isl im. Q £ q & «asr-an-""oppressive moved b. ^ I-io aiifgenrirbel ^ wtecU fliös lsi aafer '.?« ■? Nn. die Meng © öos Foii dsa Abgaaaw iEife, gerl.f.] SQ «öa Sfeaiibi)» V €) r ~ r: r. »Art.: Or« iQn soll »Wems. Ijiiffe sa ipsteorsii ills © ^ f! C »¥ i Ifelfaog das

BATH

fi ft α θ / ^ ί ι «a -H π ORIGINAL« w ** β 4 J / IJ | Ii

Oven distributed places wD? Ä _d Ibraiigiii the Jjuft not ■ 'with high pressure and with high SeesIaHiatilgkeit to be supplied.

B © i the furnace near Eig® 2 and 3 is also the course ■■ ..-. dar air flow iron meaning o Air entering through inlets 42 and 48 is permitted for combustion; the gases generated in this way reach the ai & siaß 4® β As in. Figo. 3 duroh indicated dl © airflows significant © Bf hurry, streams '' - ■ "the gases on the fault plane _ff so that the hot gases over..." and flow through the material in sight to the outlet 40, whereby the shark ability of this Saae can be exploited, »This means that the degree of operation of the furnace construction is - -. © rhsblich increases® "- - ■.

There is an old one at AuslaS 40
49 in ¥ erbinduog ₈ in dar di® A-bgaa © won © twa noch-voriiandeaen; . "freed könnsiie DI® exhaust © can then geiBäB Pig" 1 by @inea tk & B wäseher 2β "unburned öldämpfea partially or completely before au dia atmosphere are given guided w @ rden. - - -

r already enMhnt® ReoSien has two from siaer ¥ ®ll © 52 protruding® Irma 5Q with leaves 54 «waloSs®, with a small distance from the hard surface 44 move across the area - slide 11 © 52 wire see in Clockwise © _g so that the © Plafeen 54 - convey the material in a circular shape from the area of the inlets 42 and 48 to the sxasi'ltigaii outlet opening 46. If necessary, further © Eeoliea can be provided

The case 52 is located in an isolated sleeve 56 and is wedged over ain at its lower end. Tooth wheel ^C 3H votioLnom Μ- · -) 1.η · 60- '. Ii ^ at

BATH ORIGINAL

110884-3 / 1319 - "- '-'^;

. - li -

Shaft 52 xd.rd in the housing 56 cooled with air to the shaft on to maintain the desired temperature. The cooling air is t according to Fig. 2 is supplied via a lower pipe socket 64 and via a ' drained upper outlet 66 after flowing around the shaft is. Furthermore, it could be ensured that cooling air is also passed through the arms 50.

The furnace 34 is preferably assigned an auxiliary burner, which z. B. arranged in the area of the inlet 42 or 48 is. This auxiliary burner enables the initial combustion when starting up the furnace. However, it can also be used during operation if that is the case with the supplied material adhering oil or another flammable Substance alone is not enough to ensure complete combustion. Such auxiliary burners are preferred also assigned to each of the embodiments described below.

4 and 5 show another designated as a whole by 70 Oven construction with a ceiling 72, a side wall 74 and a floor 76 forming the hearth surface 78 In this construction, binlases 80 are provided so that material can flow through the side wall 74 onto the hearth surface 78 can be directed · In the middle of the stove top igt an outlet 82 is provided and the rake assembly 84 serves to do this, the material from the area in the saw side wall to the center of the stove top so that it is over outlet 82 is released "

The computing arrangement 84 comprises a support arm extending over the entire hearth surface, on which up to in plates 86 extending downwardly near the hearth surface are attached. The bottom 76 of the oven is opposite the Side wall 74 rotatably mounted. For this purpose, wheels 88 are mounted on the underside of the floor and are on guide rails 90 run. At the bottom of the bottom 76 is

909843/1315

BATH ORIGINAL

t9T9T3'7

also attached a gear 92 so that the bottom with the help a motor, not shown, can be rotated »With regard to the from Pig. 5 visible arrangement of the Pike plates 86 cause the hearth surface to rotate in FIG Direction of the arrow, that the material to be heated is moved in the direction of the outlet 82.

In the exemplary embodiment described here, one of the rakes 84 extends over the entire diameter of the oven, however, it should be noted that the Reohen only from one point on the side wall to the edge Gutauslasseβ 82 needs to extend; in this Case a cantilever bracket is provided. If necessary, additional rakes could be provided.

The side wall of the stove is according to Pig. 4 provided with air inlet openings 94. Several such openings can be provided, and each opening can be equipped with a valve in order to regulate the. allow supplied Luftmengl zn. As already mentioned, additional openings could be provided or the same openings could be used to introduce additional amounts of material into the furnace.

In construction, naeh yig. 4 and 5, it is imperative that the air entering via inlets 94 Combustion near the outer edge of the stove surface is supported, and that the resulting gases pass over the stove surface Flow away to then up over an Auslmfl 95 escape. The hot gases thus serve to the material to keep at a high! temperature while it is from the Oven is delivered. Above the outlet 95, a multiple combustion chamber can be provided, which is shown in FIG already in a special way comes into effect *

Jig. 6 and 7 show a further embodiment of FIG Invention in the form of a furnace construction, designated as a whole by 100, with a side wall 102, a l) eoke

909843/1315

1319137

unites Herdflacha 103 Educational Bathing 106, Das & ut The stove does the Qfeu via a dsren an opening. -decka towering »near the. Center of the hearth ending Slide 110 fed so that it stands in the indicated at 112 Way aalllauf and äurott a rake 114 with employees Blades or paddles 115 outwardly toward the side wall of the furnace is promoted. Sas freshly fed This comes into contact with the previously discharged 3ut and ignites.

A Grtttauslaß 116 is provided in the side wall 102, to which the material lying on the outer band of the hearth surface is guided by means of a deflector 110. The bottom 106 of the furnace is arranged on a shaft 120 and can be curled with the help of a gear 122 attached to the bottom of the bottom. Bine apron 124 * which protrudes from the bottom of the bottom 106 aws! A seal n & oh axtQen _t so that no gases can flow into the oven from the oven underneath the stove surface. Their seals are swtctanic in all furnace designs described for poor Forgesanen, in order to prevent such a flow of gases in && n furnace as well as the escape of iron gases from the furnace.

Is are inlets 110 and 129 sswbl Introduction of grasses to maintain the combustion in && u ovens Targesenen «An auxiliary burner t28 is used in addition and for ai * for * titernation of the appropriate temperature * An upper section 130 of the oven forms an outlet for the sase produced during combustion. Calculated by this Absöttnitt gstfeilÄet "channel with a Zusatzluf te inlass 132 provided to" fully ine · Haefe ¥ erbrens * rag i 'r Sase to Lienen made · Vi · erwlnnt "reduced such Waöhvesbrennung in

Auemaß di «'
Environment air * why they

BATH ORIGINAL

1918137

provided for in all of the described embodiments of the invention 1st.

8 shows a further torrent according to the invention, for example heating. Materials like turning and. Drilling chips. This goal direction includes a gas container 140, which the material on a. the sieve 12 after. ? ig. 1 corresponding "sieve can be fed and from which it is drawn off τοπ a turntable into a line 144" which opens down into a line 146 ". The line 146 is traversed from bottom to top by a relatively high speed flow, which carries the goods along and promotes upwards, in the Terbrenntkaomer 148 of the line.

Ss is noted IASS line 146 \ is relatively narrow, however, the cross-section la takes the Terbrennungszone 148 gradually increases, so that the pressure exerted by the liuftstrom on the chips is reduced accordingly. This reduction in pressure leads to * that a part of the sut, especially the coarser sticks, moves downwards again! a discharge chute 150 is used to collect this crate. The renewed supply or circulation of the hot splinters also causes the freshly supplied splinters to be ignited. When operating this device, a. The state of equilibrium from _r because the accumulation of sut, which is supplied by the air flow, also causes 5ut to be withdrawn via the carriage 150. The line 146 in the lower rope in the burn zone 148 can have an oval, rectangular or circular cross-section. In the Yerbreaaungszone the line has a sloping side wall. The Äiniaß the chute 150 may be * so IaS the eggs in the zone 148 exposed Terbrenating chips collected over substantially the whole width of the inclined side wall eratr & ekeu In a hgshetmSgliehen extent utiä in ai "autsohe be converted.

the line 146 can according to FIG. 8 a direction P arranged »a. With the help of this

009043 / 131S

BATH ORIGINAL

can be the weight of the column of goods on the pressure gauge measured and, depending on this, the material feed risk is regulated from the output container. In the gas outlet 147 of the Rohrs 146 or a device downstream of this can still a Teraperaturmesser T be provided with a Control device for the air supply in the line 146 connected let. When the exhaust gas temperature rises, the air supply is then reduced reduced »to reduce the burning rate.

The gate direction to Pig. 8 also has a cyclone separator 152 in which the loaded with the finer particles Grass flow is initiated. The outlet of this cyclone separator opens into the combustion zone of the pipeline and is designed so that the finer particles collect at its lower outlet, from where they are passed through a pendulum flap 154 get back into the combustion zone. At least a portion of this material collects in the chute 150 in order to become permanent to be fed to a briquetting press 156. Alternatively, this part could be used without the briquetting press Feed the connected pipeline 157 to the lower part of the cyclone.

Pig's device. 8 has an auxiliary burner 158 in the vertical side wall of the pipe 146, which opens near the combustion zone. This auxiliary burner is used to initiate combustion when the combustion zone When the device is put into operation, good is supplied. As soon as the combustion is initiated, entertainment is sufficient the oil present on the chips so that it is usually not necessary to use an auxiliary combustion device to be provided, because the auxiliary burner 158 could if necessary serve to maintain combustion. Furthermore, a central combustion device is preferably provided, to which the gases escaping via the outlet 147 are fed.

BATH ORIGINAL

909843/1315

FIG. 9 shows a construction which is similar to the construction according to FIG. 4 and is designated as a whole by 170 with a construction upper wall 172, a side wall 174 and an inclined, conical bottom 176. The material is in the oven via openings 178 fed into the side wall, and the combustion takes place on an inclined stove top 180. The stove or the Bottom 176 runs on rollers 182 and can be rotated with the aid of a cog wheel 184.

The hearth surface is inclined at a considerable ¥ incal so that the material on the hearth surface can move freely to the outlet 186 without hindrance; diesθ movement of the material is supported by its reohen arrangement 188. The gases are released from the furnace in the manner already described Were discharged via an outlet 190.

Fig. 10 shows a modified, generally designated 200 construction with an inclined rotary tube 202, the is supported on two rollers 206 via race rings 204. Of the Drive of the rotary tube 202 is not shown. The good becomes one of the pressure pipe on the aine side via one Slide 210 leading line 208 Bugaftthrt, on which it under the action of gravity down to outlet 212 and rutsoht into the rotary tube 202. Air is supplied to the rotary tube on the other side together with small good particles via © in © Line 214 supplied. With the small Gutteilohea it can be to deal with drilling chips from a machining workshop »the oil are wetted, so that there is internal combustion in the rotary tube 202 comes. An auxiliary burner 216 is used to ignite the Line 214 supplied goods and can also be used to support the combustion during the operation, if the fuel available on the good parts does not run out.

The chips supplied via line 208 are preferred bigger and heavier so that they are not affected by the

BAD LOCAL .. '

909843/1315

uäoh above flowing exhaust gases are entrained. The exhaust gases cause these chips to be heated up, and one of them At a certain point in their trajectory, the ul on the chips is inflamed. The bulk of the chips fed in via line 208 forms a filter that controls the Small particles are prevented from being entrained by the exhaust gases, while the combustion gases θ escaping from the cylinder 202 serve to keep the freshly supplied to the device Preheat chips.

The inclined arrangement of the rotary tube 202 causes the good moves close to the bottom under the action of gravity. Of course, auxiliary devices could also be used »To provide for the transport and removal of the goods from the rotary kiln. * '

The preheating of the slide 210 carried out good can lead to evaporation of oil, so that this · »oil to do this, al · fuel would not be available. Hence, over the line 214 of the Out, which carries the fuel required for operation, is supplied. Its a certain amount of oil can je3ooα tuen ausammeη enter the rotary tube with the umt discharged through the inlet 208; this «good can however, larger pieces of material urafaeeeu, dit to briquette » Qdtt ÄffflUngtn processed or * u other Zweekei * heated will · c & ipfcr and the no fuel

flg. 11 shows an inegfpawt with 220 bathed devices that works similarly to the devices naoh Pig »10. It generally takes the form of a slim naeto bottom shaft. In Torlifiegen 1 * 11 ÜU Sufuhrungsfusefe "In? Ör" Streieb 222 is formed. The coarse cords above the eyed suts get to the inside of the eyelet, into an opening evi # oh * a the top inside of a hat bottom 224 and an adjustable flap 226 in the upper part _Λ de · Soheehtjs o ^ ntxeten * Sie ftiöen Xeilohen | * ll * n & »fe the" ^ sieve unÄ | · 1 »^ η Ube ^ a ütlHmnf 228 iu e ^ | $? - | 4ef | p | * gtne opening i ^ fiiitx Wa ^ d dear YorsioUtun ^. Hin lilf ^ bafinntr BAD ORIGINAL

is preferably located where the fine particles in enter the device.

In operation of the device 220, the oil carried by the fine particles is ignited when the particles enter the device, and in this way heat is generated which is dissipated upwards via the opening of the chute 224 will. Since the coarse material is exposed to this heat, some of the oil present on this material is evaporated removed. The oil still remaining on the coarse goods is ignited when this material moves down to the combustion zone. In the lower end of the shaft is a conveyor belt 234 is arranged for the continuous removal of material from the device. In the area of the conveyor belt air can be added to ensure that a for A sufficient amount of air is available to maintain the required combustion.

The shaft according to page 11 has an inclined wall 238, but this wall could also be arranged vertically. It it is obvious that one should follow the Sohaobt construction fig. 11 as well as the embodiments described above could change to a considerable extent without an effect other than that described is achieved.

In all of the embodiments that are used, the aim is to strive aimed at a high furnace performance in the Sinn «fail to achieve that the hourly office rate in Compare but greet the oven »is great. With devices The at-ear type can be used without difficulty of 30 i / n leads.

The fact that the material particles are bound up on the material particles is placed in the immediate vicinity of the surface of the particles is likely to result. This leads to a high camouflaging transition and 4fwi * au finer unheated heating

"89843/1316 ^B "> o "q, ma _L

of the particles, so that the particles move through the device in question at a high speed can be.

These results can be achieved without it being necessary to combine the good particles with a to supply a stream of air under high pressure, for example in the device according to FIGS. 4 and 5, the materials fed to the furnace via an inlet 80 under the action of gravity, so that it is easy to hit the Stove area fall. Since the material is not moved, only a minimal amount of dust is whirled up, so that the Exhaust gases carry only a little dust with it.

All devices described can without difficulty with Nachverbrenimngsvorriohtungen, gas scrubbers and other devices to keep the air clean. The ease with which one can get such devices can provide, a feature is of particular importance because it leads to a reduction in system and installation costs.

Another advantage results from the fact that in all of the devices described with a reducing atmosphere or an atmosphere with a low content of oxidizing substances is used. To this end, will the supply of air to the combustion zone is regulated so that only one is sufficient to sustain the combustion Air volume is available. After the combustion process, the hot particles are only affected by the Exposed to combustion gaee, you little or all do not contain oxygen, eo that an oxidation of the particles Practical is impossible. Excess air is at the various devices only in the incineration zone initiated.

Claims;

909843/1315

Claims (25)

DR.ING. F. WUKSTHOFF. 8 MUNICH OO I) IFL. ING. G. PtTIiS 'BCHWÜIOERSTRASSI S DR. ING. D. BEHRENS "V n" i> MU <i, n..ii, DR.K.T.PECHMANN AA nvaro * SSO · 01 PaOTitOTPATS "T 1A-36 078 claims 1. J Procedure for heating flammable foreign substances, in particular special oil, carried goods, especially drilling and turning chips and the like, and for at least partial combustion of these foreign substances while heating the property in which the combustion carried out in a combustion zone of a furnace, thereby marked that the good is directly the Combustion zone of the furnace is fed, and that of the property entrained combustible foreign matter through beforehand into the combustion zone introduced, hot 'feilchen are ignited that the material progressing towards the material outlet of the stove is moved and that the combustion gases on their Ways to the exhaust gas outlet of the furnace are brought into contact with the goods. '. 2. The method according to claim 1, characterized in that the material near the side wall of the furnace introduced and that the combustion is carried out near the side wall, and that the combustion gases from a near the Side wall lying location can be deducted. 3. A method according to claim 1, characterized g © te β η η -> characterized in that the material near the side wall of the furnace is fed, and that the combustion gases in the center öes furnace are drawn off, after then, in contact with on its way Binding been well brought. _? 4. The method according to claim 1, characterized in that at least part of the good in the opposite · = electricity to the escaping combustion gases are fed into the furnace in such a way that they flow through the material » ■ - 2 - 909843/1315 ^BAD 5. The method according to any one of claims 1 to 4, characterized characterized in that the exhausted combustion gases are subjected to post-combustion. 6. The method according to claim 5, characterized net, that flows into the combustion zone together with the goods initiated and the amount of air supplied is selected so that it is approximately sufficient to maintain the combustion and that the conditions prevailing in the combustion zone are set in such a way that oxidation of the material only occurs in takes place to a subordinate extent. 7. Device for implementation according to one of the methods, of claims 1 to 6 with a combustion zone, a material inlet opening and a material feed device associated therewith, a device for moving the material to be fed through the combustion zone, a material outlet and an outlet for the combustion gases, characterized in that, that the material inlet (42, 48, 80, 110, 178) is arranged in such a way ~ _TO r ~ the combustion zone that the feed material directly hits the material that is already in the combustion zone * or could be given up for ignition and that the material with the device (50 »84, 114, 188) 'for moving the material for Gutauslass (46, 82, 116, 150, 186) is movable towards. 8. The device according to claim 7, characterized in that only a single hearth surface (44, 78, 108, 180) determining the combustion zone is provided, that above the hearth surface at least one inlet opening (42, 48, 180 , 110 is arranged, 178) such that the material fed directly to the hearth area and * represents n via the Herdfläohe HVM iQg -SiX the Gutaualass is movable and that dav gas outlet (40, 9: 5 ?. 190) Iu a the usual distance from the ba ^ ieuer {krsoinlafi'ifimmg is arranged, .so that the VerbrQmmi \ ?; 3gasQ v ^ ^ u ^^ HmungsROuas am "über haw" through the on aev ilQ: cä £ i'mh-i c.; l * ^ dIi --hi; fe. '. vi: Lal aum ■? ■ IBHMSlX anew flow -, - "'~ % Q 9 9 Λ S / I:; j i- BAD ORIGINAL 9. Apparatus according to claim 7 or 8, characterized in that the material outlet has a device (16, 159) is assigned directly to the direct delivery of the goods to a briquetting machine (18). 10. Device according to one of claims 7 to 9, characterized in that the Guteinlassf (80, 178) in a side wall and the material outlet (82, 186) is formed approximately in the middle of the hearth surface (78, 180) (Fig. 4, 5 and 9). 11. Device according to one of claims 7 to 10. ge - (U, 78,108,180) denotes by one of the stove areas assigned to it Rakes (50, 84, 114, 188) with shovels (54, 86, 115), by means of which the material from one of the side walls (38, 74 » 102, 174) adjacent area progressively over the hearth surface can be conveyed away to the product outlet of the stove surface. 12. Device according to claim 11, characterized in that the hearth surface (78, 108, 180) is around a vertical central axis is rotatably mounted (FIGS. 4 to 7 and 9), and that the rake (84, 114, 180) is stationary iat. 13. The device according to claim 10, characterized in that g ek e η η, that the hearth surface from the side wall of the oven construction in the direction of the first outlet is inclined at the bottom (Figs. 2, 3 and 9). 14. The device according to claim 8, characterized in that the inlet opening with the feed device (110) is arranged in such a way that the material can be fed to the hearth surface (108) near its center point, and that the material outlet (116) near its side wall (102) iat arranged so that the material through the Verbrenmmgf3so: ie moved from the center of the Hördfläche Riohtnsg in the side wall WU-a, - 4 -BADORiGiNAL SS 15. The device according to claim 14, characterized by a rake (1.14) with shovels (115) »by means of of which the material progresses from the central part of the hearth surface (108) can be moved across the hearth surface to the material outlet (116). 16. The device according to claim 8, characterized by an afterburning device (49) directly assigned to the gas outlet (40) and by a device for introducing air into the afterburning device, wherein this air serves to burn the part of the gases that has not yet been burned. 17. Device according to one of claims 7 to 9, characterized characterized in that the Gutauslass (40) between the central axis of the hearth surface (44) and its side wall (58) is arranged (Fig, 2 and 3) that in the side wall several inlet openings (42, 48) are provided so that the material on. the hearth surface (44) can be placed in several places and a burn occurs at each of these places * can that a rake (50) is provided, by means of which the goods can be conveyed from the relevant locations to the goods outlet (46) is, and that the gas outlet (40) approximately above the material outlet is arranged so that the gases produced during the combustion of the combustion points from across the Flow device through to gas outlet. 18. The device according to claim 10, characterized in that in its side wall (74) a plurality of inlet openings are provided at various points on their circumference, so that a burn in the area of these points can take place, and the gas outlet (95) is arranged above the material outlet (82), so that the Gases flow from the side wall to the center (Pig. 4 and 5). , BATH ORIGINAL 909843/1315 19. The device according to claim 7, characterized in that g e k e η η -. draws that the devices for moving the material through the combustion zone as pneumatic conveying devices are formed whose conveying air flow comes into contact with the material in the lower part of the combustion zone and the material is conveyed upward through the combustion zone (FIGS. 8, 10 and 11) in order to achieve combustion of the aforementioned To cause foreign matter. 20. The device according to claim 19, characterized in that g e k en η, that the material outlet (150) is arranged near the lower part of the combustion zone (148) and the material falls to the material outlet after it has been heated in the combustion zone. 21. The device according to claim 20, characterized in that a relatively narrow channel (146) for Supply of the air flow to be brought into contact with the material supplied to the combustion zone is provided, and that this channel widens to a section of relatively large cross-section, which forms the heating and combustion zone (148), so that the inflow acting on the material resistance or pressure of the air flow in this section is considerable is reduced so that at least part of the good can fall into the material outlet (150) (Fig. 8). 22. The device according to claim 21, characterized in that the material outlet (150) in the lower part of the enlarged portion of the channel (146) is mUrtd laterally. 23. The apparatus of claim 21 or 22, g e k e nn draws by a cutter (152) connected to the upper portion of the channel (146) for separation solid particles contained in the gas leaving the channel, and in that the outlet (154) of the separator directly into the channel opens above the Gutsauslass. . - 6 - 90984 3/1315 ^BAD 24. The device according to claim 7, characterized in that it is designed as a rotary kiln (202) _{t is associated} with a pipe (214) for direct introduction of the material into the combustion zone at one end, that the gas outlet comprises a chimney (2b) connected to the other end, and that a grass feeder (208) is provided for introducing additional material into the chimney, so that the gases produced during combustion are filtered by the additional material as they escape from the cylinder. 25. Device according to one of claims 13 biB 24ι da-, marked by the fact that the combustion zone Auxiliary burners (128, 158) are assigned. 909843/1315